Council of Economic Advisers (U.S.) , United States. Congress. Joint Committee on the Economic Report, 1946-1956 and United States. Congress. Joint Economic Committee, 1956-. "Implicit Price Deflators for Gross National Product," in Council of Economic Advisers (U.S.) , United States. Congress. Joint Committee on the Economic Report, 1946-1956 and United States. Congress. Joint Economic Committee, 1956-. "June 1991," Economic Indicators (June 1991) : 4-4. https://fraser.stlouisfed.org/title/1/item/715/toc/200987 , accessed on May 18, 2024.